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3929893
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Patent number 3,929,893
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Issue date Dec 30, 1975
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C07 - ORGANIC CHEMISTRY
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3929675
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Patent number 3,929,675
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Issue date Dec 30, 1975
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C07 - ORGANIC CHEMISTRY
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3896180
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Patent number 3,896,180
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Issue date Jul 22, 1975
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C07 - ORGANIC CHEMISTRY
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3852219
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Patent number 3,852,219
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Issue date Dec 3, 1974
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C07 - ORGANIC CHEMISTRY
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3265738
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Patent number 3,265,738
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Issue date Aug 9, 1966
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C07 - ORGANIC CHEMISTRY
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3251888
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Patent number 3,251,888
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Issue date May 17, 1966
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C07 - ORGANIC CHEMISTRY
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3192251
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Patent number 3,192,251
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Issue date Jun 29, 1965
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C07 - ORGANIC CHEMISTRY
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2228268
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Patent number 2,228,268
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Issue date Jan 14, 1941
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C07 - ORGANIC CHEMISTRY